Vid-20201119-wa0048.mp4 -

: A unique serial number for files sent on that specific day.

: The date the video was processed (November 19, 2020). VID-20201119-WA0048.mp4

: Indicates the file originated from or was sent via WhatsApp. : A unique serial number for files sent on that specific day

There is no specific "useful article" regarding because this is a generic filename automatically generated by WhatsApp . VID-20201119-WA0048.mp4

The name follows a standard structure that reveals when the file was created or saved: : Short for "Video."